CS80C88 - 5 MHz CMOS 8/16-Bit Microprocessor | Intersil
部品番号: CS80C88 ✗ 生産終了CS80C88 概要
A microprocessor is a programmable semiconductor device that executes instructions, coordinates memory and peripherals, and forms the central processing element of an embedded or industrial computer. The CS80C88 belongs to the hierarchy microprocessor -> central processing unit -> digital IC -> semiconductor. Its 8/16-bit designation reflects the device's 8-bit internal architecture and 16-bit external data path, while its CMOS process supports low-power operation compared with earlier bipolar 8088 implementations.
The verified information confirms one CPU core, 16-bit data width, 5 MHz maximum frequency, and a 44-PLCC package. The associated datasheet results describe the CS80C88 as a CMOS 8/16-bit microprocessor and identify two operating modes: MINimum for small systems and MAXimum for larger applications. Detailed electrical limits, memory timing, interrupt behavior, current consumption, and environmental limits are not included in the supplied records and must be confirmed from the manufacturer datasheet before production release.
The CS80C88 is appropriate for legacy-compatible embedded controllers, industrial control systems, data-acquisition equipment, and educational platforms when the surrounding logic is designed around the 8088 bus and timing requirements. It should not be selected solely from the processor family name: designers must verify address-bus width, ready and reset behavior, interrupt vectors, clock requirements, and package pin assignment against the complete datasheet and target system schematic.
The main design consideration is legacy-bus integration. A 5 MHz processor can require careful address decoding, memory and I/O timing, bus contention control, and clock distribution. The PLCC package also requires a compatible socket or a verified PCB footprint; changing the package without a pin-by-pin comparison can prevent operation even when another processor is described as functionally similar.
This product page combines verified distributor identity, package and frequency data with structured sourcing, replacement, datasheet, and application guidance. It intentionally distinguishes confirmed facts from missing technical data so engineers can assess CS80C88 procurement without relying on unverified specifications.
ドロップイン代替品: CS80C88 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: CS80C88 （同一形状・フットプリント） — 相違点: Maximum Clock Frequency, Operating Modes, Package, Process Technology, Product Type.
CS80C88-2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MSM80C88RS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
CP80C88-2Z
✅ ドロップイン価格はお問い合わせください
データシートを見る →CS80C8
✅ ドロップイン📋 参考代替品（カタログ未掲載）
Harris CS80C88
✅ ドロップイン📋 参考代替品（カタログ未掲載）
CS80C88 最大定格＆電気的特性
| Product Type | CMOS 8/16-bit microprocessor |
| Manufacturer | Intersil |
| Core Count | 1 core |
| External Data Width | 16 bit |
| 最大クロック周波数 | 5 MHz |
| パッケージ | 44-PLCC |
| Package Dimensions | 16.58 mm x 16.58 mm |
| Process Technology | Self-aligned silicon gate CMOS process, Scaled SAJI IV |
| Operating Modes | MINimum and MAXimum |
| 実装タイプ | Surface mount |
CS80C88 16.58 mm x 16.58 mm ピン配置ガイド
CS80C88 (16.58 mm x 16.58 mm パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: CS80C88.
詳細は データシート をご参照ください。
主な用途
CS80C88 の用途: 6 件s: Legacy Embedded Control, Industrial Data Acquisition, Educational Processor Platform, Communication Controller, Instrument Control System, Retrofit and Obsolescence Recovery.
Legacy Embedded Control
The CS80C88 fits legacy embedded-control projects built around the 80C88 bus and instruction architecture. Its confirmed one-core, 16-bit external data path, and 5 MHz operating point provide a defined platform for coordinating memory, I/O, interrupts, and control logic. A design should allocate address decoding and timing margins before firmware is brought up. Because the supplied data does not confirm supply voltage, address-bus width, or environmental limits, use the complete manufacturer datasheet and validate the board with representative memory and peripheral access cycles.
おすすめ
Industrial Data Acquisition
The CS80C88 can serve as the processor in a data-acquisition controller when the system requires a deterministic legacy bus and tightly controlled memory and I/O timing. Its 5 MHz rating is the principal confirmed performance figure, while the 44-PLCC package supports systems designed around a socket or verified PCB footprint. Engineers should confirm the input signal interface, sampling architecture, interrupt latency, and supply requirements separately. The key benefit is architectural continuity with existing 80C88-based equipment rather than modern high-speed connectivity.
おすすめ
Educational Processor Platform
The CS80C88 is useful for education and experimentation because it exposes a documented 8088-class processor architecture in a 44-PLCC package. Students can study instruction execution, memory mapping, bus timing, interrupts, reset behavior, and peripheral interfacing with the 5 MHz device. The educational value is strongest when the board includes accessible address, data, control, clock, and reset signals. A complete lab should include logic analysis and safeguards against incorrect address decoding or bus contention, rather than treating the processor package as a self-contained development system.
おすすめ
Communication Controller
The CS80C88 can be integrated into a communication controller for systems that already depend on 8088-compatible bus behavior. Its 16-bit external data path and 5 MHz operation provide a central processing function for command parsing, buffer management, and peripheral supervision. The design must still validate electrical timing, interrupt priorities, handshake polarity, and fault recovery. The available evidence does not confirm dedicated communication peripherals, so external interface devices are required. MAX3232CD or MAX3243ECAI+ can provide RS-232 connectivity, subject to the target system's electrical specification.
おすすめ
Instrument Control System
The CS80C88 is applicable to legacy instrument-control systems where a processor must coordinate memory, relays, measurement front ends, and service communications. The confirmed 5 MHz operating point supports deterministic control tasks, but actual throughput depends on the bus, memory, wait states, and instruction mix. Designers should use conservative timing and include watchdog and brownout strategies. Because electrical limits and temperature data are not supplied, they must be verified from the manufacturer datasheet. The architecture is best suited to equipment where software and board interfaces are already based on the 80C88 family.
おすすめ
Retrofit and Obsolescence Recovery
The CS80C88 may be relevant when maintaining or replicating equipment that depends on an Intersil 80C88 implementation. A retrofit should begin with exact package and pinout verification, then compare processor timing, supply requirements, bus signals, and software behavior against the installed device. The supplied cross-reference material does not prove a universal replacement, so procurement teams should document traceability, condition, and lifecycle risk. This application is especially valuable for industrial equipment where redesigning the processor subsystem is more expensive than qualifying an original or carefully verified equivalent.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: CS80C88 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | CS80C88-2 | MSM80C88RS | 80C88 | CS80C8 | Harris CS80C88 |
|---|---|---|---|---|---|---|
| Brand | Intersil | Intersil | Intersil | Intersil | Intersil | Intersil |
主な差別化要因
- Confirmed 5 MHz operating point （vs CS80C88-2)
- Confirmed 44-PLCC package and dimensions （vs MSM80C88RS)
- Documented Scaled SAJI IV CMOS process （vs 80C88)
設計ノート
Treat the 44-PLCC footprint as a controlled mechanical interface. Before layout, obtain the exact manufacturer pinout and package drawing, then verify lead pitch, body size, pin numbering orientation, solderability, and the distinction between a socketed and directly mounted implementation. The confirmed body dimension is 16.58 mm by 16.58 mm, but that value alone does not define every land-pattern detail. Do not substitute a generic PLCC footprint without checking the package drawing.
Build the 5 MHz bus with short, controlled routes and place address decoding and memory control close to the processor. Confirm whether the system uses wait states, ready handshaking, or synchronous timing assumptions. The supplied data does not provide bus timing or address width, so use the complete datasheet and simulate worst-case memory, I/O, interrupt, and reset paths before fabrication. Avoid adding long stub branches to the external bus.
Do not treat a related 80C88 listing as a drop-in replacement without comparing pin-by-pin behavior. The CS80C88-2 and MSM80C88RS entries are useful leads, but the supplied data does not quantify their speed, timing, electrical levels, or footprint equivalence. Before substitution, create a cross-reference checklist covering supply voltage, clock, reset, address and data buses, control signals, interrupts, memory timing, and package pin numbering.
コンプライアンス情報
No verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements appear in the supplied web results. Compliance must be confirmed with the manufacturer or an authorized sourcing document.
